RU170487U1 - DEVICE FOR PROCESSING FIBER FIBERS INTAKE IN A ROAD MIXTURE - Google Patents

Abstract

The utility model relates to the production of building materials, namely, devices for preparing fibrous materials before introducing the latter into building and road-building mixtures for reinforcing them. The device has a cone-shaped hopper with a heater, a fan, an inspection window, slide gate valves at the inlet and outlet, and a vortex chamber following the hopper and connected to it by an opening. The latter has an input for supplying compressed air to it and an outlet for the exit of the processed fiber. A splitter is placed in the vortex chamber, made in the form of rows of sprockets placed on two vertically oriented shafts, mounted on each of the shafts with the same pitch and arranged asymmetrically with a shift and with the ability to ensure the entry of a number of sprockets of one shaft in the intervals between the sprockets of the second shaft, driven through V-belt transmission. The device allows you to get a uniform distribution of fiber over the entire volume of the building mixture. 2 s P.F-ly, 2 Fig., pr.

Description

The utility model relates to the production of building materials, namely, devices for preparing fibrous materials before introducing the latter into building and road-building mixtures for reinforcing them.

Known technical solutions aimed at eliminating the defect in the uneven distribution of fiber in different directions of preparation of the road-building mixture, including layer-by-layer distribution [copyright certificates SU No. 1235739, 1770131, RF patent for utility model No. 124625, RF patent for invention No. 20144228] .

However, some of them are bulky, others are not effective enough, while others are aimed simultaneously at several aspects of resolving the quality problems of a mixture with fiber.

A device for introducing fiber into the building mixture, described in the copyright certificate SU No. 1549757. The device comprises a housing with loading and unloading openings, feeding rotors, a ripping drum with rows of pegs located on its surface, a compressed air supply mechanism made in the form of a disk with a radial channel directed downward and pipes with bends. Each peg has a channel and an L-shaped hook located at its end. The device is equipped with cams, each of which is mounted on a shaft in the plane of the shaft. In this case, each peg has a rod adjacent to it along the lateral surface, a roller and a clip in which the rod is mounted. The bottom end of the latter is spring-loaded and contacts the cam via a roller.

Also known is a device for feeding fiber, described in the copyright certificate SU No. 1779604. The device comprises a device for supplying air and a feed hopper, at the discharge opening of which there is a drum with holes on the side surface. In the holes there are spring-loaded rods with rollers at the ends in contact with the cam element mounted in the central part of the drum.

The closest analogue is a device for preparing fiber before feeding it into the building mixture described in the copyright certificate SU No. 1763202, which contains a housing with loading and unloading holes, a device for feeding fiber. The working body - the dryer is made in the form of a shaft with rigid radially located elements - brushes.

The disadvantages of all the above devices and installations for supplying fiber to the road-building mixture is the complexity of the structures, as well as the lack of a guaranteed uniform distribution of fiber over the entire volume of the building mixture.

The objective of the claimed utility model is to obtain a uniform distribution of fiber over the entire volume of the building mixture.

The essence of the claimed utility model lies in the fact that the device for processing fiber introduced into the road-building mixture has a cone-shaped hopper with a heater, a fan, an inspection window, gate valves at the inlet and outlet, and a vortex chamber following the hopper and connected to it by an opening, having an input for supplying compressed air to it and an outlet for the exit of the processed fiber, while a splitter is placed in the vortex chamber, made in the form of a shaft placed on two vertically oriented x rows of sprockets mounted on each of the shafts with the same pitch and arranged asymmetrically with a shift and with the ability to ensure the entry of a number of sprockets of one shaft in the intervals between the sprockets of the second shaft, driven by a V-belt drive.

A device is also claimed which, along with the above-described features, has a speed controller for the rotation of the fiber splitter.

In addition, a device is also claimed in which the hopper and the swirl chamber are equipped with temperature meters and air heating controls.

The technical result.

Unlike equipment that provides fiber fiber fluffing in the compared devices mentioned in your review, including the closest analogue, the claimed utility model is aimed at the possibility of processing fiber according to the type of carding mechanisms (combing, separation into individual fibers, surface change in fiber structure to facilitate its dispersal , both in area and in layers - by their height inside the reinforced road-building mixture). In essence, the carding mechanism of fiber processing is declared, which provides both efficiency and simplicity of equipment due to the other service design innovations described above for additional solutions expressed in dependent claims.

The presence in the claimed utility model of two shafts with a row of sprockets on each of them allows more effective in a shorter period and with a higher processing intensity to act on fibers of different compliance, including the most difficult to process.

The utility model is illustrated using FIG. 1-2. In FIG. 1 shows a general diagram of a device; FIG. 2 - splitter, and positions 1-14 indicate:

1 - hopper

2 - gate valve at the inlet of the hopper,

3 - gate valve at the exit of the hopper,

4 - viewing window,

5 - heater

6 - fan

7 - slide gate for regulating heat input,

8 - splitter,

9 - shafts,

10 - stars

11 - electric motor

12 - swirl chamber,

13 - input for supplying compressed air,

14 - gate valve holes for the release of fiber

15 - support post

16 - speed controller splitter,

17 - measuring temperature of the hopper,

18 is a temperature meter of the vortex chamber,

19 - controller for heating the air of the hopper,

20 - controller for heating the air of the vortex chamber.

The device for processing fiber before introducing it into the road-building reinforced mixture includes a hopper 1 with slide gate valves at the inlet 2 and the outlet 3 of it. The hopper 1 on the side surface has a viewing window 4. In addition, the hopper 1 is equipped with a heater 5 and a fan 6, a slide gate 7 for regulating heat. The device comprises a splitter 8 in the form of rows of sprockets 10 arranged on vertically oriented shafts 9, mounted on each of the shafts 9 with the same pitch and arranged asymmetrically with a shift and with the possibility of a row of sprockets 10 of one shaft 9 to enter between the sprockets 9 of the second shaft, driven into motion by means of a V-belt drive. The splitter 8 is connected to the electric motor 11 and placed in a vortex chamber 12 installed after the hopper 1. The vortex chamber 12 has an input 13 for supplying compressed air to it and an opening for releasing fiber with a slide gate 14 on one side and receiving it from the hopper 1, which mounted on a support column 15. The splitter 8 has a speed controller 16. The hopper 1 and the swirl chamber 12 are equipped with temperature meters 17, 18 and air heating controls 19, 20.

The device works as follows. The device is installed directly in front of the mixer for the release of the road-building mixture. The hopper 1 with splitter 8 is placed on the support column 15. Through the feed pipe at the entrance by opening the slide gate 2, the fiber enters the hopper due to gravitational forces 1. The slide shutter 2 of the fiber feed pipe is opened taking into account the required mixer performance depending on the type and capacity of the plant for the production of road-building mixtures. For feeding and dosing of fiber into the hopper 1, the existing commercially available equipment of the respective plants is used in the form of dispensers, compressors, pipelines, etc. Then, the slide gates 7 and 3 are opened in the lower part of the hopper 1. The fiber under the influence of gravitational forces and warm air coming from the heater 5 and fan 6 is directed into the vortex chamber 12. There, the fiber reaches the rotating splitter 8, made in the form of asterisks 10, placed on vertically oriented shafts 9. The rotation of the splitter 8 can be carried out at different predetermined speeds due to the electric motor 11 with a gearbox and varies by a speed controller (in contrast to the closest analogue, etc. of analogs) of rotation 16 depending on the required state of the fiber. An input for supplying compressed air 13 is formed in the vortex chamber 12. Under mechanical action of the splitter 8 and the air flow coming from the input 13, the fiber is uniformly blown up without the formation of lumps. Due to the air flow when the slide gate 14 is open, the fiber is fed into the mixer through the outlet opening of the vortex chamber. The device is equipped with a heater 5 and a fan 6 for drying and heating the fiber before entering the swirl chamber 12 in order to improve the quality of the building mixture. The system of slide gates 2, 3, 7, 14 of the hopper 1 eliminates the loss of fiber particles due to their departure from the working volume of the hopper 1 in an unspecified direction. The hopper 1 has a visualization element, made, for example, in the form of a viewing window or video cameras installed at a distance from each other with the possibility of a complete overview of the internal space of the hopper displayed on the display. To optimize the dynamics of the flushing process, appropriate temperature meters 17, 18 and air heating controllers 19, 20 are used, located in the hopper 1 and the vortex chamber 12, the data from which are fed to a remote control panel.

Example.

The inventive device is implemented in the form of a prototype and is being tested in the departments of the enterprises of the city of Saratov for the production of modern road-building materials.

Claims (3)

1. A device for processing fiber introduced into the road-building mixture, characterized in that it has a cone-shaped hopper with a heater, a fan, a viewing window, gate valves at the inlet and outlet and a vortex chamber having an input following the hopper and connected to it by an opening for supplying compressed air to it and an outlet for the exit of the processed fiber, while in the vortex chamber a splitter is placed, made in the form of rows of sprockets placed on two vertically oriented shafts, located on each of the shafts with the same pitch and located asymmetrically with a shift and with the possibility of ensuring the entry of a number of sprockets of one shaft in the intervals between the sprockets of the second shaft, driven by a V-belt transmission. 2. The device according to claim 1, characterized in that it has a speed regulator for the splitter. 3. The device according to claim 1, characterized in that the hopper and the swirl chamber are equipped with temperature meters and air heating controls.

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